Steam-turbine.



PATBNTED DEC. 27, 1904.

' P. c; OSGANYAN. STB-AM TURBINB. AP'PLIOATIONHLED nm. s, 1903.

r iff! AN 4M Aorney y UNITED I STATES Patented December 27,

YPATENTv OFFICE.

RAUL OHR1sTOPHER- Os`oANYAN, OE NEWARK, NEW JERSEY, AssIGNOR, `RY DiREoT AND MESNE ASSIGNMENTS, OE ONE-HALF To e. A. THOM- SON, OE

y sOMERvILLE NEW JERSEY, AND THE ADAMs-BAGNALL vELEO- TRIO COMPANY, OF CLEVELAND, OHIO. l

STEAM-TURBINE.

sPEoIFIcATIoN farming part of Letters Patent N0. 77s,326, dated Dqceaibera'z, 1904.- N 'Applicants nea'pminbu s, laqs. sommo. 1ss,645.

To all whom'iv' may concern:

Be it known that I, PAUL CHRISTOPHER s- OANYAN, a resident of Newark, in the county of Essex and State of NewJersey, Vhave inl 5 vented certain new and useful Improvements in Steam-Turbines; and I do hereby declare the following to be a full, clear, and exact description of the invention,l such as will enable others skilled in the' art to which itappertains IO to make and use the's'ame.

My invention relates to an-improved steam-v -N- turbine, lthe object of the invention being to provide improvementsl of this character in which the rotary element is provided with sev- I 5 eral series of buckets, each of which series receives direc/t im pact of steam discharged thereagainstbysuitable nozzles or discharge-oriices, and interposed between each series of buckets and the next series of nozzles or discharge-orifices is a receiver-chamber into which-steam from the series of buckets in ad- Vance isdirected after the kinetic energy due to expansion in the nozzle has been absorbed by lthe buckets, and by this means the entire motive force of agiven quantity of steam is utilized, and the speed of the turbine can-be controlled by the number of nozzles in use.

Vith this object in viewthe invention consists incertain novel features of construction 30 and combinations and arrangements of'parts,

as will be ymore fully hereinafter described,

and'vpointed out inthe claim.

In the accompanying drawings, Figure l is .a view in section illustrating one embodiment ot' my invention. Fig. 2 is a v iew in section on the line thereof. Fig. 3 is a View in section on the line y y. l

1 represents a base on which two casings 2 and'3 are mounted, and a' shaft 4 is located in 40 alied bearings in said casings, suitably packed to prevent escape of steam and supported between the casings by a post or standard 5. In casing 2 a rotating element or member 6 is i' located, and a similar rotatingmember 7 is located vin casing 3, both being securely fixed 0n shaft 4, and stationaryv members 8 and 9,

are located in the respective cas-ings. I fThev rotating members 6 and 7 are both provided' with several annular series of dished vanes or buckets 10, located besiderlngs l1 of thestationary members and suitably packed to prevent the passage of steam except through nozzles or ports 12 in the rings, and between each l ring y11 and the series of buckets l0 in' ad? Vance thereof'a receiver or chamber 13 ispro- -vided for a purpose which will hereinafter appear. Set-screws 14 may be providedto adyjust the position of the stationary members to compensate'for wear, and set-screws 15, located in brackets 16, may be provided to adjust the shaft and rotating members.

17 is an inlet for steam into casing 2. from I which it exhausts through a pipe 18 into casing Band exhauststherefrom through a4 port 19.

angle to direct the steam directly against the dished buckets. inl the direction of rotation thereof, and the operation of my improvea tov drive the-rotating members at a rapid rate.

After passing between the first series of buck- .ets l() the steam collects inthe first annular chamber 13 and'then passes through the next pressure of the next stage against the next series of buckets 10 into the'next chamber 13, and so on throughout` the casing. The exseries of nozzles 12, expanding therein to the panding of the steam in several nozzles and .Y subsequent impact of this expanded steam .serves to controll and steady the operation ofturbine, at the same time utilizing all the power of the steam. From casing 2 the,steaml exhausts through pipe 18 into casing 3, and the operation above described is repeated in this casing, which serves as a further controllingmedium for the turbine and insuresv the steady uniform operation thereof.

A great variety vof different constructions 6s AThe nozzles or ports 12 are located at an A y might be employed to carry out my invention,

which consists, broadly, in a series of nozzles to direct steam against one series of'vanes or buckets of a rotating element and a receivingchamber into which the steam from the buckets or vanes escape and is directed therefrom by another series of nozzles against a second series of vanes or buckets of the rotating element.

l/Vith my improvements the speedof the turbine can be controlled perfectly and at the Sametime the power of the steam utilized to the maximum degree.

A vast number of changes might be made in the general form and arrangement of the several parts described withoutdeparting from my invention, and hence I would have it understood that l do not restrict myseltl to the precise details set forth, but consider myself at liberty to make such slight ychanges and alterations as fairly fall within thespirit'and scope of my invention.

Having fully described my invention, what provided with a series of normally lixed rings,

each having a series of nozzles constructed to develop ediabatical expansion of fluid and discharge the same into the annular chambers between said rings at pressure equal to that in said chambers, a wheel mounted to rotate in said casing and provided on its periphery with a series of venes, each having a series ol buckets to receive the fluid -pressure issuing from said nozzles, the width of cach vane be ing appreciably less than that ol the annular chamber in which it revolves.

In testimony whereof l have signed this specitication in the presence of two su bscribing Witnesses.

PAUL CHRSTOPHER OSCANYAN. 

